/Engine/Plugins/2D/Paper2D/Source/Paper2D/Classes/PaperTileMapComponent.h
Creates a new tile map of the specified size, replacing the TileMap reference (or dropping the previous owned one)
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Sprite") void CreateNewTileMap ( int32 MapWidth, int32 MapHeight, int32 TileWidth, int32 TileHeight, float PixelsPerUnrealUnit, bool bCreateLayer )